/*
 *
 * Copyright 2021-2025 Software Radio Systems Limited
 *
 * This file is part of srsRAN.
 *
 * srsRAN is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * srsRAN is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * A copy of the GNU Affero General Public License can be found in
 * the LICENSE file in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/.
 *
 */

#pragma once

#include "TartanLlama/expected.hpp"

namespace srsran {

struct default_error_t {};
struct default_success_t {};

template <typename E>
using unexpected = tl::unexpected<E>;

template <typename E>
unexpected<std::decay_t<E>> make_unexpected(E&& e)
{
  return unexpected<std::decay_t<E>>(std::forward<E>(e));
}

template <typename T = default_success_t, typename E = default_error_t>
using expected = tl::expected<T, E>;

namespace detail {
template <typename T>
struct is_expected : std::false_type {
};
template <typename V, typename E>
struct is_expected<expected<V, E>> : std::true_type {
};
} // namespace detail

template <typename E>
using error_type = expected<default_success_t, E>;

} // namespace srsran
